Absurdly played to pin stiff-jack offside by leading out Q from Qx with AT9xx in dummy, which paid out and produced three overtricks. When I could have claimed 13 tricks by cashing out after a discard made my hand high, I began pitching the overtricks (produced by a progressive squeeze which I didn't completely comprehend) so that I could retain a loser to endplay lefty with at trick eleven. This allowed me to force a stepping-stone to finesse-opposite-void ending, which I wanted badly, having discovered Terence Reese books.
The strongest session on the North shore is Thursday night at North Shore Bridge Club, which you register in advance for (tournaments run over a number of weeks).
If you are willing to cross the bridge, Monday nights at NSWBA as Kieran said, which you also register for in advance.